linux-kernel - Re: [PATCH v2] fixup: gpu/drm/nouveau: enable THP support for GPU memory migration

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Message-ID: <b4182bfe-4081-468b-86d3-f1ac04ca4f5d@kernel.org>
Date: Mon, 17 Nov 2025 14:01:37 +0100
From: "David Hildenbrand (Red Hat)" <david@...nel.org>
To: Balbir Singh <balbirs@...dia.com>, linux-kernel@...r.kernel.org,
 linux-mm@...ck.org, dri-devel@...ts.freedesktop.org
Cc: kernel test robot <lkp@...el.com>,
 Andrew Morton <akpm@...ux-foundation.org>, Zi Yan <ziy@...dia.com>,
 Joshua Hahn <joshua.hahnjy@...il.com>, Rakie Kim <rakie.kim@...com>,
 Byungchul Park <byungchul@...com>, Gregory Price <gourry@...rry.net>,
 Ying Huang <ying.huang@...ux.alibaba.com>,
 Alistair Popple <apopple@...dia.com>, Oscar Salvador <osalvador@...e.de>,
 Lorenzo Stoakes <lorenzo.stoakes@...cle.com>,
 Baolin Wang <baolin.wang@...ux.alibaba.com>,
 "Liam R. Howlett" <Liam.Howlett@...cle.com>, Nico Pache <npache@...hat.com>,
 Ryan Roberts <ryan.roberts@....com>, Dev Jain <dev.jain@....com>,
 Barry Song <baohua@...nel.org>, Lyude Paul <lyude@...hat.com>,
 Danilo Krummrich <dakr@...nel.org>, David Airlie <airlied@...il.com>,
 Simona Vetter <simona@...ll.ch>, Ralph Campbell <rcampbell@...dia.com>,
 Mika Penttilä <mpenttil@...hat.com>,
 Matthew Brost <matthew.brost@...el.com>,
 Francois Dugast <francois.dugast@...el.com>
Subject: Re: [PATCH v2] fixup: gpu/drm/nouveau: enable THP support for GPU
 memory migration

On 15.11.25 01:33, Balbir Singh wrote:
> Kernel test robot, reported a sparse error with the patch
> 
> The sparse report states:
> 
>>> drivers/gpu/drm/nouveau/nouveau_dmem.c:259:13: sparse: sparse: incorrect type in assignment (different base types) @@     expected restricted vm_fault_t [assigned] [usertype] ret @@     got int @@
>     drivers/gpu/drm/nouveau/nouveau_dmem.c:259:13: sparse:     expected restricted vm_fault_t [assigned] [usertype] ret
>     drivers/gpu/drm/nouveau/nouveau_dmem.c:259:13: sparse:     got int
> 

I would have simplified that to (and avoided the long line)

"The kernel test robot reports a sparse warning "expected restricted 
vm_fault_t [assigned] [usertype] ret ... got int."

Whoever applies that can massage it I am sure.

Acked-by: David Hildenbrand (Red Hat) <david@...nel.org>

-- 
Cheers

David